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Basic flow is the main source of runoff during the dry season in the Lena River Basin, and plays an important role in water resource planning and ecological environment protection. A stable basic flow segmentation method is particularly crucial for basic flow research. This study compared 9 basic flow segmentation methods, including digital filtering, sliding minimum method, and time step method, to select the optimal method suitable for the Lena River Basin, in order to determine the basic flow. The results showed that the Boughton Chapman filtering method had the best application effect in the Lena River Basin.

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Applicability Analysis of Base Flow Segmentation Method in the Lena River Basin

  • 会议论文

  • 发表日期：

    2025年

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  • Yin Tang,
  • Shaoyan Lv,
  • Haiming Li,
  • Han Xiao

摘要

Basic flow is the main source of runoff during the dry season in the Lena River Basin, and plays an important role in water resource planning and ecological environment protection. A stable basic flow segmentation method is particularly crucial for basic flow research. This study compared 9 basic flow segmentation methods, including digital filtering, sliding minimum method, and time step method, to select the optimal method suitable for the Lena River Basin, in order to determine the basic flow. The results showed that the Boughton Chapman filtering method had the best application effect in the Lena River Basin.